LG Electronics Internal Blu-ray Writer BH16NS40 Lg Bh16ns40 Internal Blu-ray Writer - Bd-r/re Support - 16x Cd Read/48x Cd Write/24x Cd Rewrite - 12x Bd Read/16x Bd Write/12x Bd Rewrite - 16x Dvd Read/16x Dvd Write/8x Dvd Rewrite - Double-layer Media Supported - Sata - 5.25 - 1/2h